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Gala2k [10]
3 years ago
6

If two planes intersect, they intersect in exactly one ?

Mathematics
2 answers:
Rzqust [24]3 years ago
7 0

Answer:

yes

Step-by-step explanation:

sineoko [7]3 years ago
3 0

Answer:

Yes.

If they do, their intersection is a line.

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Find the sum of all positive integers less than 100, which:
wlad13 [49]

Answer:

The sum of all positive integers less than 100, which are not divisible by 3 is 3267.

Step-by-step explanation:

The all positive integers less than 100 has sum, given by

S₁ = 1 + 2 + 3 + 4 + ......... + 99

⇒ S₁ = \frac{99 \times (99 + 1)}{2} = 4950

Now, the sum of all positive integers less than 100 which are divisible by 3 is

S₂ = 3 + 6 + 9 + 12 + 15 + ........ + 99

⇒ S₂ = 3(1 + 2 + 3 + ........ + 33)

⇒ S₂ = 3 \times \frac{33 \times (33 + 1)}{2} = 1683

Therefore, the sum of all positive integers less than 100, which are not divisible by 3 is = S₁ - S₂ = 4950 - 1683 = 3267. (Answer)

Note : The sum of n natural numbers S is given by

S = 1 + 2 + 3 + 4 + ....... + n = \frac{n \times (n + 1)}{2} .

3 0
3 years ago
Express 1+√2/√2 in the form p+q√2​
scoundrel [369]

\frac{1+\sqrt{2}}{\sqrt{2}} = \frac{1}{\sqrt{2}} + \frac{\sqrt{2}}{\sqrt{2}} = 1 + \frac{1}{\sqrt{2}}

3 0
3 years ago
A package of ground beef costs 6.98 the price per pound is 1.86. How many pounds of ground beef are in the package? Round to the
iragen [17]
3 pounds are in the package.

7 0
3 years ago
Read 2 more answers
A bag contains 21 red marbles, 22 green marbles, 24 orange marbles, and 10 yellow marbles. You choose a marble randomly from the
Naddik [55]

21 +22+24+10 = 77 total marbles

22 +10 =32 green and yellow marbles

32/77 probability of choosing a green or yellow one

32/77 = 0.416

 answer is C. 0.416


7 0
3 years ago
Write in standard form. <br><br> a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4
adoni [48]

Answer:

2 4 2 8 3 7 3 10 4 hope it will work

7 0
2 years ago
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